1471-2148-7-85-2.jpg (74.33 kB)
The ancestor of the chromatophore obtained a carboxysomal operon by horizontal gene transfer from a -like γ-proteobacterium-8
figure
posted on 2011-12-31, 07:41 authored by Birger Marin, Eva CM Nowack, Gernot Glöckner, Michael MelkonianCopyright information:
Taken from "The ancestor of the chromatophore obtained a carboxysomal operon by horizontal gene transfer from a -like γ-proteobacterium"
http://www.biomedcentral.com/1471-2148/7/85
BMC Evolutionary Biology 2007;7():85-85.
Published online 5 Jun 2007
PMCID:PMC1904183.
represent synapomorphies of α-cyanobacterial clades to the exclusion of and other prokaryotes. Sequence data and evolutionary changes are plotted on a simplified phylogram (NJ-bootstrap consensus tree). Pair 868/909 shows a uniquely derived CBC (compensatory base change: U-A → C-G) of all free-living α-cyanobacteria; the neighbouring pair 869/908 changed in the common ancestor of the marine PS-subclades (marine and ) whereas the -clade and are plesiomorphic. Pair 869/908 shows parallel changes in a few other cyanobacteria, (e.g. in ).